For real-time, regardless of playback or events, you could do this.
from PySide import QtGui, QtCore
def print_mouse_position():
point = QtGui.QCursor().pos()
print "x: %s; y: %s" % (point.x(), point.y())
timer = QtCore.QTimer()
timer.setInterval(1000.0 / 25) # Print 25 times per second
timer.timeout.connect(print_mouse_position)
timer.start()# timer.stop() # Call this to stop printing
This would need to to be enabled on the widget of interest and all
ancestors. You could perhaps recursively walk through all QWidget children
starting at the Maya Main Window, or walk up through the parents from the
widget of interest.
You could use QApplication.allWidgets() for this, but there’s still an
amount of elements in the Maya window without mouse tracking functionality;
mainly the viewport. Not to mention the potential performance bottleneck,
and the fact that some widgets may rely on having tracking disabled; e.g.
widgets that overlap. Don’t do this. :)
On 20 November 2014 02:56, Jesse Kretschmer <[email protected]> wrote:
> You can use PySide, probably. What are you trying to do?
>
> Tracking the mouse movement will get complicated, but it is trivial get
> the mouse position using PySide at any time you desire.
>
> from PySide import QtGuipoint = QtGui.QCursor().pos()print "x: %s; y: %s" %
> (point.x(), point.y())
>
>
>
>
> *... Ignore the rest of this message if that would work for you. I'm
> indulging my own curiosity.*
>
> *Tracking Mouse Movement *(probably a bad idea)
>
> If you want to actively track the mouse, you will need to mess with the
> widget settings. I don't think that mouse tracking is enabled in maya by
> default. I'm not going to have maya handy for a little while, so I can't
> verify that statement.
>
> Note from qt-project on QMouseEvent
> <http://qt-project.org/doc/qt-4.8/qmouseevent.html>:
>
> Mouse move events will occur only when a mouse button is pressed down,
> unless mouse tracking has been enabled with QWidget::setMouseTracking
> <http://qt-project.org/doc/qt-4.8/qwidget.html#mouseTracking-prop>().
>
> This would need to to be enabled on the widget of interest and *all*
> ancestors.
> You could perhaps recursively walk through all QWidget children starting at
> the Maya Main Window, or walk up through the parents from the widget of
> interest.
>
> Anyhow, here is an example that may work while the mouse is held down. I
> have not tested it, but it covers the basic of creating an EventFilter and
> installing it to the MainWindow. I'll leave the setMouseTracking to someone
> with Maya handy.
>
> """Wrap instance method:http://nathanhorne.com/?p=485
> Event filter installation
> example:https://groups.google.com/d/msg/python_inside_maya/LwmKyqp8MW8/pSa0gRKuKHQJ""";
> import maya.OpenMayaUI as omfrom PySide import QtGui, QtCoreimport shiboken
> def wrapinstance(ptr, base=None):
> """ Utility to convert a pointer to a Qt class instance (PySide/PyQt
> compatible)
> :param ptr: Pointer to QObject in memory :type ptr: long or Swig
> instance :param base: (Optional) Base class to wrap with (Defaults to
> QObject, which should handle anything) :type base: QtGui.QWidget
> :return: QWidget or subclass instance :rtype: QtGui.QWidget """
> if ptr is None:
> return None
> ptr = long(ptr) #Ensure type
> if globals().has_key('shiboken'):
> if base is None:
> qObj = shiboken.wrapInstance(long(ptr), QtCore.QObject)
> metaObj = qObj.metaObject()
> cls = metaObj.className()
> superCls = metaObj.superClass().className()
> if hasattr(QtGui, cls):
> base = getattr(QtGui, cls)
> elif hasattr(QtGui, superCls):
> base = getattr(QtGui, superCls)
> else:
> base = QtGui.QWidget
> return shiboken.wrapInstance(long(ptr), base)
> elif globals().has_key('sip'):
> base = QtCore.QObject
> return sip.wrapinstance(long(ptr), base)
> else:
> return None
>
> # Lifted from older Maya Python post:#
> https://groups.google.com/d/msg/python_inside_maya/LwmKyqp8MW8/pSa0gRKuKHQJ#class
> MouseEventFilter(QtCore.QObject):
> def __init__(self, label=None):
> self.__label = label
> QtCore.QObject.__init__(self)
>
> def eventFilter(self, obj, event):
> typ = event.type()
> if event.type() == event.MouseMove:
> if self.__label and hasattr(self.__label, 'setText'):
> self.__label.setText("x: %s; y: %s" % (event.x(), event.y()))
> return False
> def main():
> main_window = wrapinstance(long(om.MQtUtil.mainWindow()))
> label = QtGui.QLabel()
> eventFilter = MouseEventFilter(label)
> main_window.installEventFilter(eventFilter)
> label.show()
>
> ## remove
> # main_window.removeEventFilter(eventFilter)
> # eventFilter.deleteLater()
> if __name__ == '__main__':
> main()
>
> gl;hf
>
> On Wed Nov 19 2014 at 2:10:46 PM maya2015 <[email protected]> wrote:
>
>> How can I track the mouse's 2d screen-space position in realtime?
>>
>>
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--
*Marcus Ottosson*
[email protected]
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